Altarnun, 's a village and civil parish in Cornwall, United Kingdom. The village's on the north-eastern edge of Bodmin Moor. The parish includes the village of Fivelanes and hamlets of Treween and Trewint, and had a population of 976 according to the 2001 census. The moorland area of the parish's large and lies west of the village towards Rough Tor and southwards towards Dozmary Pool. There's a large conifer plantation at Wilsey Down Forest (Halvana Plantation). The village's in the valley of th… (More on Altarnun)